constructor() {

    this.pos = createVector(width/2, height/2);

    this.vel = createVector(2, 0);

    this.segments = [];

    this.numSegments = 8;

    // Initialize segments

    for (let i = 0; i < this.numSegments; i++) {

      this.segments.push(new Segment(this.pos.x - i * 30, this.pos.y, i));

    }

    // Head properties

    this.antennaePhase = 0;

    this.eyePhase = 0;

  }

  update() {

    // Update velocity with sine wave for organic movement

    this.vel.x = cos(frameCount * 0.02) * 3 + 2;

    // Update position

    this.pos.add(this.vel);

    // Wrap around screen

    if (this.pos.x > width + 50) {

      this.pos.x = -50;

      for (let segment of this.segments) {

        segment.pos.x = this.pos.x - (segment.index * 30);

      }

    }

    // Update antennae and eye movement

    this.antennaePhase = frameCount * 0.1;

    this.eyePhase = frameCount * 0.05;

    // Update segments

    let speed = this.vel.mag();

    let leadPos = this.pos.copy();

    for (let segment of this.segments) {

      segment.update(leadPos, speed);

      leadPos = segment.pos.copy();

    }

  }

  display() {

    // Draw segments

    for (let segment of this.segments) {

      segment.display(this.vel.mag());

    }

    this.drawHead();

  }

​

  drawHead() {

    push();

    translate(this.pos.x, this.pos.y);

    // Head

    fill(100, 160, 210);

    noStroke();

    ellipse(0, 0, 40, 40);

​

    stroke(70, 130, 180);

    strokeWeight(2);

    let antLeft = createVector(-15, -15);

    let antRight = createVector(15, -15);

    let antWave = sin(this.antennaePhase) * 10;

    line(antLeft.x, antLeft.y, 

         antLeft.x - 20 + antWave, antLeft.y - 20);

    line(antRight.x, antRight.y, 

         antRight.x + 20 + antWave, antRight.y - 20);

    // Eyes

    let eyeX = sin(this.eyePhase) * 3;

    fill(255);

    ellipse(-10 + eyeX, -5, 12, 12);

    ellipse(10 + eyeX, -5, 12, 12);

    fill(0);

    ellipse(-10 + eyeX, -5, 6, 6);

    ellipse(10 + eyeX, -5, 6, 6);

    pop();

  }

}